CN105859192A - Asphalt mixture - Google Patents
Asphalt mixture Download PDFInfo
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- CN105859192A CN105859192A CN201610253536.3A CN201610253536A CN105859192A CN 105859192 A CN105859192 A CN 105859192A CN 201610253536 A CN201610253536 A CN 201610253536A CN 105859192 A CN105859192 A CN 105859192A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
Abstract
The invention discloses an asphalt mixture, which is prepared from 15 percent to 32 percent of asphalt, 8 percent to 14 percent of gravel, 9 percent to 14 percent of waste tire particles, 45 percent to 64 percent of basalt fiber and 4 percent to 7 percent of powdered ore in percentage by weight. The basalt fiber is added into the asphalt mixture for improving the intensity, the high-temperature-resistant and low-temperature-resistant performance of the asphalt mixture; the pavement made of the asphalt mixture cannot be damaged by ice and snow weather in northern area and the exposure in the sun in south area; the pavement flatness is high; tracks cannot be left; the potential safety hazards caused by tracks are eliminated.
Description
Technical field
The invention belongs to road and bridge construction field, particularly relate to the asphalt as highway pavement.
Background technology
There are bituminous paving and cement pavement in the road surface of highway or avenue highway, and bituminous paving is little to the friction of tire, but to hot day by thermal softening, automobile rolls and forms rut later, bonding pitch on tire, one is easily to cause traffic accident, but bigger to tire infringement.And cement pavement is big to the friction of tire, the abrasion to tire is big, and relatively costly.
Therefore, the road surface laid now uses asphaltic road-mix surface course more, and existing asphalt is different by binder used, can be divided into asphalt and coal tar pitch two big classes；Also there is employing some country or mixes bitumen mixing.Different by kind of gathering materials used, rubble, gravel, chiltern, slag several classes can be divided into, use the most universal with rubble.Different by compound maximum particle size, the number classes such as coarse grain (less than 35～40 millimeters), middle grain (less than 20～25 millimeters), particulate (less than 10～15 millimeters), sand grains (less than 5～7 millimeters) can be divided into.Different by the compaction rate of compound, the number classes such as close-graded, half open gradation and open gradation can be divided into, open mix is also referred to as asphalt macadam.Wherein to mix the close-graded macadam-aggregate mix of heat paving durable in use for heat, and intensity is high, and good integrity is the representative materials building senior bituminous paving, applies the widest.Bituminous concrete is worked out by various countries different specifications, the heat that China formulates mixes hot black top compound technical specification, is referred to as bituminous concrete with voidage 10% and following person, is subdivided into I type and II type, the porosity of I type is 3 (or 2)～6%, belongs to level of confidentiality distribution type；II type is 6～10%, belongs to half open gradation type；Voidage more than 10% person is referred to as asphalt macadam, belongs to open gradation type.
Existing asphalt mainly has following several:
Asphalt mixture with plentiful aggregate (SAC)
The vehicle of larger flow is safe, comfortable on a highway to pass through at high speed, and asphalt surface course must have good antiskid performance.This just requires that asphalt surface course not only to have bigger coefficient of friction, and to have deeper surface texture depth (construction depth is that high speed traveling noise-decreasing floats, dabbling affects the principal element of driver's sight line) with minimizing water " LM ".Achievement in research in recent years shows: " the antiskid performance of asphalt surface course is the microtexture by surface layer structure and macrostructure two parts are formed.Wherein macrostructure derives from the match ratio of asphalt, is mainly determined by the thickness of aggregate, grating form ".
The mid-80 China starts to build high-grade highway, from the point of view of the version of asphalt surface course: I type bituminous concrete, voidage 3%～6%, water penetration is little, good endurance, and the coefficient of friction of superficial layer can reach requirement, but surface texture depth is less, far from reaching requirement.II type bituminous concrete voidage 6%～10%, surface structure is deep, and non-deformability is relatively strong, but its water penetration, durability are poor.In order to solve the antiskid performance (particularly superficial layer is in the case of construction depth is relatively big, has again the version of good water proofing property) of asphalt surface course, stone asphalt Course is studied and is used.
Asphalt mixture with plentiful aggregate
Asphalt mixture with plentiful aggregate is to use more coarse crushing stone to form skeleton, and bitumastic is filled the hole in skeleton and made skeleton glued together and the asphalt form that formed.Specifically comprise: content of coarse aggregate 69%～78%, breeze 6%～10%, bitumen aggregate ratio about 5%.Through facts have proved of several high highways, stone asphalt Course had both been provided that deeper surface structure, there is again less space and less water penetration as traditional I type bituminous concrete, there is again preferable ability of anti-deformation (dynamic stability is higher) simultaneously.In other words, " many rubbles bituminous concrete had both had the advantage of traditional I type bituminous concrete, the advantage again with II type bituminous concrete, turn avoid the deficiency of two kinds of traditional asphalt xoncrete structure forms simultaneously.”
Stone mastic asphalt (SMA)
The German traffic of the sixties is the most flourishing, and according to the climatic characteristic (summer temperature about 20 DEG C, winter is not too cold) of this country, custom builds " pouring asphalt concrete " road surface.This structure Asphalt Content about 12%, breeze content is high.The rut using middle discovery road surface is extremely serious, the automobile of this country was for anti-skidding needs the most at that time, the tire (include Europe some countries the most such) of commonly used band nail, its result is pavement abrasion extremely serious (1 year can thinning about 4cm).In order to overcome the most serious rut, reducing the abrasion on road surface, the match ratio of asphalt is adjusted by highway work person, increases the ratio of coarse aggregate, adds fiber stabilizer, defines the first shape of SMA structure.German traffic department in 1984 has formally formulated the design and construction specification on a SMA road surface, and SMA pavement structure form is able to perfect substantially.Successively, the utilization the most expanded in German, more European countries of this novel pavement structure.At the beginning of the nineties, American Highway circle thinks that its Pavement Road Surface Quality is good not as the pavement quality of European countries.Through investigating the gap finding to there are two aspects: 1. in the utilization of modified pitch；2. in the version on road surface (i.e. SMA).1991, within 1992, start to be studied, promote this version of SMA, most typically: nineteen ninety-five Atlanta carry out network of highways for hosting the Olympic Games reconstructing with newly-built, all have employed this version of SMA and do road surface.
Stone mastic asphalt road surface (SMA)
Stone mastic asphalt (SMA) is a kind of bitumastic binder formed with pitch, breeze and fiber stabilizer, is filled in the mineral aggregate skeleton of gap grading, the compound formed.Its composition characteristic mainly includes two aspects: the mutual interlocking of coarse aggregate that 1. content is more forms the structural framework of high stability (non-deformability is strong)；2. the bitumastic that fine aggregate breeze, pitch and fiber stabilizer form is by together with cementing for skeleton, and fills skeleton space, makes compound have the most flexible and durability.
SMA structure composition can be summarized as " three-many-one-little, it may be assumed that coarse aggregate is many, breeze is many, pitch is many, fine aggregate few ".Specifically: 1. SMA is the asphalt of a kind of gap grading, the coarse aggregate ratio of more than 5mm is up to 70%～80%, and the consumption of breeze reaches 7%～13%, (" Ratio of filler bitumen " is beyond the restriction of general value 1.2).The gap grading being consequently formed, is rarely employed fine aggregate；2. for adding more pitch, on the one hand increase breeze consumption, use fiber as stabilizer simultaneously；3. asphalt content is more, up to 6.5%～7%, and caking property requires height, and wishes to select the pitch (preferably with modified pitch) that needle penetration is little, softening point is high, temperature stability is good
The feature of SMA: stone mastic asphalt is that current a kind of non-deformability generally acknowledged (using more) in the world is strong, the preferable bituminous mixtures for pavement surface of durability.Due to the good embedded squeezing of coarse aggregate, compound has extraordinary high temperature rutting resistance, simultaneously because the cementation of bitumastic, low-temperature deformation performance and water stability also have more improvement.Adding fiber stabilizer, make asphalt binder keep high viscosity, it paves and consolidation effect is preferable.Gap grading forms macrovoid on surface, and construction depth is big, and antiskid performance is good.The space of compound is the least simultaneously, and ageing-resistant performance and durability are all fine, thus improve the Pavement Performance of asphalt comprehensively.
Damaged tire pitch (AR)
Damaged tire pitch is first junked tire protoplasm to be processed into damaged tire powder, it is combined in certain thickness grating ratio again, add multiple high polymer modifying agent simultaneously, and under the hot conditions of abundant mix (more than 180 DEG C), the cementing material of modified pitch that swell abundant with matrix pitch is formed after reacting.Damaged tire pitch has the performances such as high-temperature stability, low temperature flexibility, ageing resistance, fatigue resistance, water resistant damageability, is ideal environment-friendly type ground surface material, in the stress absorbing layer being currently mainly applied in road structure and superficial layer.
Damaged tire pitch, through the application of 50 years, defines two ripe graded mixture product lines.Compared with conventional pitch compound, damaged tire asphalt has higher asphalt content (about 7.5%).
Open mix (AR-OGFC): the aggregate blending being main by high consumption damaged tire pitch (9-10%) and single particle size rubble forms.
Feature and application: open mix has good antiskid, splash-proof, noise-reducing and lasting stability, be the ideal surfaced layer material of highway and urban express way.The Reflective Cracking Resistance that open mix is prominent simultaneously, is widely used in cement pavement ultrathin overlay.
Gap-graded mix (AR-GAP): formed with damaged tire asphalt mixing by median diameter gap grading.Dynamic stability reaches more than 3000, and freeze-thaw split value reaches more than 80.
Feature and application: be widely used in the intersection urban road surface layer more with speed change and reinforced structure owing to possessing preferable surface structure, dense water, anti-shear stability, gap grading and compound.
The performance advantage of damaged tire bituminous paving:
Excellent fatigue resistance improves the endurance quality on road surface；
Owing to cementitious matter content is high, good springiness, improve road surface to fatigue crack, the resistivity of reflection crack；
Stronger low temperature flexibility alleviates the temperature sensitivity on road surface；
Because cementitious matter content is high, oil film is thick and in tire containing antioxidant, therefore improve that road is anti-aging, oxidation resistance；
The Rut resistance of excellence, permanent deformation resistance；
Owing to the durability of road is improved so that the maintenance costs of road significantly reduces；
Use junked tire in a large number, both saved the energy, and be also beneficial to environmental protection；
Carbon black in damaged tire can make road surface black preserve for a long time, high with the contrast of graticule, improves the security of road；
Damaged tire pitch is when asphalt, and owing to construction thickness is thin, construction rapidly, shortens the engineering time.
Superpave asphalt (SUP)
Superpave asphalt is one of achievement in research of American strategy Highway Research Program (SHRP).Superpave is Superior
The abbreviation of Performing Asphalt Pavement, the Chinese meaning " high performance asphalt pavement " Superpave Asphalt Mixture Design method exactly is a kind of brand-new Asphalt Mixture Design method, comprise asphalt binder specification, design of Asphalt Mix Volume, computer software and relevant use equipment, test method and standard.Sperpave asphalt mixture design is divided into three levels: mixture volume design also referred to as level I design, use gyratory compactor (SGC) also requires to select asphalt content according to volume design.Compound medium Pavement Performance level design is also referred to as the design of level II, is designed as basis with mixture volume, and additional one group of SST and IDT tests to reach a series of performance prediction.Compound the highest Pavement Performance level design is also referred to as the design of level III, is designed as basis with mixture volume, and additional SST and IDT test is to test in a wide temperature excursion.Owing to containing widely trial stretch and result, analyze the performance prediction level that can provide more reliable completely.Superpave Asphalt Mixture Design system is the weather according to project location and design traffic volume, material is selected all to concentrate in volume-designed method with asphalt mixture design, the method requires when Designing Asphalt Pavement, take into full account and affect to temperature road pavement within the period of service, require road surface can meet high-temperature behavior when the highest design temperature requirement, do not produce excessively rut；When road surface minimum temperature, cryogenic property can be met requirement, it is to avoid or reduce cold cracking；Fatigue cracking is controlled in the range of normal temperature.For asphalt binder, use rotary thin film in drying oven test simulate asphalt mix and stir and pave in engineering aging；Use pressure aging vessel PAV simulation aging in pavement usage engineering of pitch.For gathering materials, when carrying out mixture gradation design, the concept of control point and restricted area is used to limit, optimization test gradation design.For asphalt, after mixing, using short ageing to simulate asphalt and mixing and stirring pave in compacting process aging, bitumen mixture specimen uses rotary compactor to prepare.In test specimen compacting process, record gyratory compaction number of times and the relation of height of specimen, thus asphalt mixture volume characteristic is evaluated.So-called Superpave mixture volume design is that the voidage according to asphalt, void in mineral aggregate, pitch interstitial rate equal-volume characteristic carry out hot-mix asphalt mixture design, method mainly have designing material select, asphalt mix and stir, asphalt mixture volume analysis and compound checking, including bulk properties and water sensitivity.Asphalt mixture volume design process is mainly made up of four parts: 1. material selects；2. aggregate grading selects；3. asphalt optimum asphalt content is determined；4. the checking of asphalt is assessed, including bulk properties and water sensitivity.Suerpave asphalt mixture volume design method all has a strict regulation to material, aggregate grading, compound, and has formulated and strictly regulate requirement accordingly, including cementitious matter specification, aggregate specification, compound specification.
SBS modified asphalt concrete (SBS)
SBS modified pitch is on the basis of original matrix pitch, the SBS modifier of admixture 2.5%, 3.0%, 4.0%, modified pitch, and compared with protobitumen, its high temperature viscosity increases, and softening point raises.Under good design mixture proportion and execution conditions, durability and the high-temperature stability of bituminous paving significantly improve.
Modified pitch and Indexes of Evaluation Effect thereof
So-called modified pitch, also modified asphalt mixture is included, refer to " outer-penetrating agent (modifying agent) such as admixture damaged tire, resin, high molecular polymer, levigate scrap tire powder or other fillers; or take measures such as pitch mild oxidation processing makes the performance of pitch or asphalt be improved and the asphalt binder made ".Modifying agent refers to " the natural or artificial organic or inorganic material added in pitch or asphalt; melting, be dispersed in pitch, improve or improve the material of bituminous pavement property (react with pitch or wrap in surface of aggregate) ".The quality of modified effect, is mainly evaluated by modified pitch index, and the evaluation index of modified pitch is: (1) Susceptibility Indexes: penetration index (needle penetration).(2) cryogenic property index: 5 DEG C of ductilities and equivalent brittle point.(3) r: 60 DEG C of viscosity, softening point and equivalent softening point.(4) heat endurance (ageing-resistant) index: rotary thin film in drying oven is tested.(5) pitch viscoelastic effect index: elastic recovery.6. pitch and bond stress index of gathering materials: viscous toughness test.7. construction and safety index: flash-point, 135 DEG C of kinematic viscosity.8. index is isolated: softening point difference.
Heat pressing type bituminous concrete (HRA)
Heat pressing type asphalt concrete pavement (Hot Rolled Asphalt Pavement, HRA), as the asphalt concrete pavement form of a kind of uniqueness, is widely used in Britain.
All there is following defect in above-mentioned existing asphalt:
Low temperature resistant poor with resistance to elevated temperatures, cryogenic conditions for the north is little, road surface easily brittle crust, asphalt arches upward, losing surface evenness, in the area being chronically at exposure in sunshine for south, asphalt softens, it is likely to occur pavement asphalt variable thickness, causes the rough defect in road surface.
Summary of the invention
For high temperature resistant, the defect that resistance to low temperature is poor that overcome that above-mentioned various asphalt also exists, the invention provides a kind of asphalt, this asphalt with the addition of basalt fibre, strengthen the intensity of asphalt and high temperature resistant and low temperature resistant performance, can be chronically in exposure in sunshine, can be used for again in ice and snow weather, scope of application light, service life is long.
A kind of asphalt, it is characterised in that: include pitch, rubble, damaged tire particle, basalt fibre and breeze, in terms of parts by weight:
Pitch: 25 ~ 55 parts
Rubble: 2 ~ 8 parts
Damaged tire particle: 12 ~ 18 parts
Basalt fibre: 22 ~ 38 parts
Breeze: 2 ~ 8 parts.
The granularity of described rubble is 3mm ~ 12mm, and damaged tire grain graininess is 1mm ~ 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.5mm ~ 1.2mm.
Granularity refers to the size of particle, and the granularity diameter of usual spherical particles represents, the granularity length of side of cubic granules represents.To irregular mineral grain, a certain sphere diameter equivalent diameter as this particle that can will have identical behavior with mineral grain.
Described rubble is basalt stone, granite or the mixture of two kinds of rocks.
Described damaged tire particle waste tire is made.
Basalt fibre chopped fiber is the product by continuous basalt fiber precursor chopped.(silane) size is scribbled on fiber.
Continuous basalt fiber is after basalt building stones melt at 1450 DEG C～1500 DEG C, by the continuous fiber of platinum-rhodium alloy bushing high speed pulling.Being similar to glass fibre, its performance is between high intensity S glass fibre and alkali-free E glass fibre, and the color of pure natural basalt fibre is generally brown, and some is like golden.
The technique preparing this asphalt:
The first step: produce basalt fibre
Continuous basalt fiber is chopped into basalt fibre chopped fiber, fiber is coated (silane) size,
Second step: produce damaged tire particle
The damaged tire of waste tire is cut into graininess, and grain graininess is 1mm ~ 3mm,
3rd step: produce rubble
With jaw crusher or kibbler roll, the mixture of basalt stone, granite or two kinds of rocks is broken into the particle that granularity is 3mm ~ 12mm,
4th step: heated asphalt
Pitch heating and melting is become emulsus,
5th step: produce breeze
The particle becoming granularity to be 0.5mm ore reduction with jaw crusher or kibbler roll,
6th step: mixing
In agitator, above-mentioned substance is proportionally mixed.
The invention have the advantages that
1, the present invention includes pitch, rubble, damaged tire particle, basalt fibre and breeze, in terms of parts by weight: pitch: 25 ~ 55 parts；Rubble: 2 ~ 8 parts；Damaged tire particle: 12 ~ 18 parts；Basalt fibre: 22 ~ 38 parts；Breeze: 2 ~ 8 parts.Basalt fibre is added in asphalt, improve the intensity of asphalt, high temperature resistant and low temperature resistant performance, the either ice and snow weather in the north, or tanning by the sun of the south sun, the road surface made by the present invention all without destruction, surface evenness is good, also will not leave behind rut, eliminates the potential safety hazard that rut brings.
2, the granularity of rubble of the present invention is 3mm ~ 12mm, and damaged tire grain graininess is 1mm ~ 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.5mm ~ 1.2mm.The asphalt pliability so made and intensity are attained by requirement, and the surface evenness made can be protected, and also allow for workman's construction.
Detailed description of the invention
Embodiment 1
A kind of asphalt, it is characterised in that: include pitch, rubble, damaged tire particle, basalt fibre and breeze, in terms of parts by weight:
Pitch: 25 parts
Rubble: 3 parts
Damaged tire particle: 12 parts
Basalt fibre: 22 parts
Breeze: 2 parts.
The granularity of described rubble is 3mm, and damaged tire grain graininess is 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.5mm.
Granularity refers to the size of particle, and the granularity diameter of usual spherical particles represents, the granularity length of side of cubic granules represents.To irregular mineral grain, a certain sphere diameter equivalent diameter as this particle that can will have identical behavior with mineral grain.
Described rubble is basalt stone, granite or the mixture of two kinds of rocks.
Described damaged tire particle waste tire is made.
Basalt fibre chopped fiber is the product by continuous basalt fiber precursor chopped.(silane) size is scribbled on fiber.
Continuous basalt fiber is after basalt building stones melt at 1450 DEG C～1500 DEG C, by the continuous fiber of platinum-rhodium alloy bushing high speed pulling.Being similar to glass fibre, its performance is between high intensity S glass fibre and alkali-free E glass fibre, and the color of pure natural basalt fibre is generally brown, and some is like golden.
Present invention also offers the preparation technology of this asphalt:
The first step: produce basalt fibre
Continuous basalt fiber is chopped into basalt fibre chopped fiber, fiber is coated (silane) size,
Second step: produce damaged tire particle
The damaged tire of waste tire is cut into graininess, and grain graininess is 3mm,
3rd step: produce rubble
With jaw crusher or kibbler roll, the mixture of basalt stone, granite or two kinds of rocks is broken into the particle that granularity is 3mm,
4th step: heated asphalt
Pitch heating and melting is become emulsus,
5th step: produce breeze
The particle becoming granularity to be 0.5mm ore reduction with jaw crusher or kibbler roll,
6th step: mixing
In agitator, above-mentioned substance is proportionally mixed.
Embodiment 2
A kind of asphalt, it is characterised in that: include pitch, rubble, damaged tire particle, basalt fibre and breeze, in terms of parts by weight:
Pitch: 25 parts
Rubble: 8 parts
Damaged tire particle: 12 parts
Basalt fibre: 22 parts
Breeze: 3 parts.
The granularity of described rubble is 8mm, and damaged tire grain graininess is 2mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.8mm.
Granularity refers to the size of particle, and the granularity diameter of usual spherical particles represents, the granularity length of side of cubic granules represents.To irregular mineral grain, a certain sphere diameter equivalent diameter as this particle that can will have identical behavior with mineral grain.
Described rubble is basalt stone, granite or the mixture of two kinds of rocks.
Described damaged tire particle waste tire is made.
Basalt fibre chopped fiber is the product by continuous basalt fiber precursor chopped.(silane) size is scribbled on fiber.
Continuous basalt fiber is after basalt building stones melt at 1450 DEG C～1500 DEG C, by the continuous fiber of platinum-rhodium alloy bushing high speed pulling.Being similar to glass fibre, its performance is between high intensity S glass fibre and alkali-free E glass fibre, and the color of pure natural basalt fibre is generally brown, and some is like golden.
Present invention also offers the preparation technology of this asphalt:
The first step: produce basalt fibre
Continuous basalt fiber is chopped into basalt fibre chopped fiber, fiber is coated (silane) size,
Second step: produce damaged tire particle
The damaged tire of waste tire is cut into graininess, and grain graininess is 2mm,
3rd step: produce rubble
With jaw crusher or kibbler roll, the mixture of basalt stone, granite or two kinds of rocks is broken into the particle that granularity is 8mm,
4th step: heated asphalt
5th step: produce breeze
The particle becoming granularity to be 0.8mm ore reduction with jaw crusher or kibbler roll,
6th step: mixing
In agitator, above-mentioned substance is proportionally mixed.
Embodiment 3
A kind of asphalt, it is characterised in that: include pitch, rubble, damaged tire particle, basalt fibre and breeze, in terms of parts by weight:
Pitch: 25 parts
Rubble: 7 parts
Damaged tire particle: 16 parts
Basalt fibre: 38 parts
Breeze: 8 parts.
The granularity of described rubble is 12mm, and damaged tire grain graininess is 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 1.2mm.
Granularity refers to the size of particle, and the granularity diameter of usual spherical particles represents, the granularity length of side of cubic granules represents.To irregular mineral grain, a certain sphere diameter equivalent diameter as this particle that can will have identical behavior with mineral grain.
Described rubble is basalt stone, granite or the mixture of two kinds of rocks.
Described damaged tire particle waste tire is made.
Basalt fibre chopped fiber is the product by continuous basalt fiber precursor chopped.(silane) size is scribbled on fiber.
Continuous basalt fiber is after basalt building stones melt at 1450 DEG C～1500 DEG C, by the continuous fiber of platinum-rhodium alloy bushing high speed pulling.Being similar to glass fibre, its performance is between high intensity S glass fibre and alkali-free E glass fibre, and the color of pure natural basalt fibre is generally brown, and some is like golden.
Present invention also offers the preparation technology of this asphalt:
The first step: produce basalt fibre
Continuous basalt fiber is chopped into basalt fibre chopped fiber, fiber is coated (silane) size,
Second step: produce damaged tire particle
The damaged tire of waste tire is cut into graininess, and grain graininess is 3mm,
3rd step: produce rubble
With jaw crusher or kibbler roll, the mixture of basalt stone, granite or two kinds of rocks is broken into the particle that granularity is 12mm,
4th step: heated asphalt
Pitch heating and melting is become emulsus,
5th step: produce breeze
The particle becoming granularity to be 1.2mm ore reduction with jaw crusher or kibbler roll,
6th step: mixing
In agitator, above-mentioned substance is proportionally mixed.
Claims (4)
1. an asphalt, it is characterised in that: include pitch, rubble, damaged tire particle, basalt fibre and breeze, in terms of parts by weight:
Pitch: 25 ~ 55 parts
Rubble: 2 ~ 8 parts
Damaged tire particle: 12 ~ 18 parts
Basalt fibre: 22 ~ 38 parts
Breeze: 2 ~ 8 parts.
A kind of asphalt the most according to claim 1, it is characterised in that: the granularity of described rubble is 3mm ~ 12mm, and damaged tire grain graininess is 1mm ~ 3mm, and basalt fibre is basalt fibre chopped fiber, and the granularity of described breeze is 0.5mm ~ 1.2mm.
A kind of asphalt the most according to claim 1 and 2, it is characterised in that: described rubble is basalt stone, granite or the mixture of two kinds of rocks.
A kind of asphalt the most according to claim 1 and 2, it is characterised in that: described damaged tire particle waste tire is made.
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| CN201610253536.3A CN105859192A (en) | 2016-04-22 | 2016-04-22 | Asphalt mixture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188517A (en) * | 2017-07-19 | 2017-09-22 | 合肥申沃园艺有限公司 | A kind of ecological, environmental protective high-performance gardens ground surface material and preparation method thereof |
| CN112225491A (en) * | 2020-09-27 | 2021-01-15 | 扬州大学 | Fiber-modified SMA-13 asphalt mixture with excellent long-term performance |
| CN112851204A (en) * | 2021-03-10 | 2021-05-28 | 江苏绿材谷新材料科技发展有限公司 | Asphalt mixture modified by waste basalt fiber reinforced composite material |
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| CN101857393A (en) * | 2009-04-09 | 2010-10-13 | 深圳市海川实业股份有限公司 | Anti-rut asphalt modifier and preparation method thereof and modified asphalt and application thereof |
| CN102092988A (en) * | 2009-12-09 | 2011-06-15 | 中国石油天然气股份有限公司 | Warm-mixed asphalt mixture and preparation method thereof |
| CN104072023A (en) * | 2014-06-09 | 2014-10-01 | 四川航天五源复合材料有限公司 | Pavement made from asphalt mixture |
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| CN112225491A (en) * | 2020-09-27 | 2021-01-15 | 扬州大学 | Fiber-modified SMA-13 asphalt mixture with excellent long-term performance |
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